Coal-washing jig.



G. W. KELLER, G. BRASSLNGTON, A. BRASSINGTON & H. D. KOSTENB-AUDER.

' GOAL WASHING JIG.

APPLICATION FILED JANA, 1912.

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GOAL WASHING JIG.

APPLIUATION FILED JAN. 4, 1912.

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Patented Oct. 22, 1912.

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GOAL WASHING JIG.

APPLICATION I 'ILBD JAN. 4, 1912.

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GOAL WASHING JIG.

APPLIGATION FILED JA-N. 4,-1912.

Patented @013. 22, 1912.

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ABRAHAM BRASSING-TQN, AND HARRY gilt g A D. KOSTENBAUDE R, OI? ARISTES, PENNSYLVANIA.

COAL-WASHING JIG.

Specification of Letters Patent.

application filed January 4, 1912. Serial No. 669,322.

To all whom it may concern.

Be it known that we, GEORGE W. KELLER,

CHARLES BRASSINGTON, ABRAHAM 'Bmssnve- TON, and HARRY D. KOSTENBAUDER, citizens of the United States, residing atAristes, in the county of Columbia and State of Pennsylvania, have invented certain new and use ful Improvements in Coal-Washing Jigs, of which the following is a specification, reference being had to the accompanying drawings.

This inventionrelates to certain new and useful improvements in coal-washing jigs and has for its new and improved means for agitating the jig cradle whereby the coal is separated from the heavier particles of slate.

Another and more specific object of the invention resides in the provision of a jig cradle mounted for Vertical and longitudinal bodily movement, and means whereby greater vertical movement of the cradle is obtained at one end thereof than at the other end.

A. further object of the invention is to provide improved means for adjustably mounting the cradle whereby its discharge end may be disposed out of the plane of the opposite end thereof to facilitate the movement of the body of coal through the cradle in a longitudinal direction, the adjustment of the cradle also simultaneously varying the extent of longitudinal and vertical move-'' ment of the cradle.

A still further object of the invention is to provide a comparatively simple, eflicient and inexpensive operating means for jig cradles whereby the coal may be quickly and thoroughly separated from the slate and other foreign matter contained therein.

With the above and other objects in view, the invention consists of the; novel features of construction, combination and arrange ment of parts hereinafter fully described and claimed, and illustrated in the accom panying drawings in which- Figure 1 is a side elevation of a coalwashing jig, one side of the water tank being broken away to show the cradle arranged.

therein; Fig.2 is a top plan view; Fig. 3 is a longitudinal section taken on the line 3-3 of Fig. 2; Fig. 4: is a transverse section taken on the line H of-Fig. 3; Fig. 5 is a detail side elevation of one end of the cradle illustrating the adjust-able mounting ofthe same primary object to provide whereby-the variable direction of thrust or throw of the cradle is obtained; and Fig.; is a detail perspective view ofgthe cradle supporting bracket larly designed for thereof.

Referring in detail to the drawings 5 designates a tank upon the opposite side walls of which a transverse shaft 6 is journaled at its ends in the bearings 7. A belt wheel 8 is centrally fixed upon this shaft and is traiversed by the. driving belt 9 which extends from any'suitable source of power. The innor walls of the tank 5 are lined with metal end walls llare prefer' plates 10, andthe ably inclined inwardly and the bottom 12 of the tank. lVithin the up per portion of the tank 5 the jig cradle 13 is arrangedf This cradle is suspended or hung in the tank from the transverse shafts l4 and 15 which are mounted in the bearings downwardly to lo and 17 respectively arranged upon the side walls of the tank above the front and rear ends of the cradle 13. v

The cradle. 13 consists of the parallel side walls 18, the inner surfaces of which are lined with the metal plates 19. The rear end of the cradle is closed by the transversely extending plate 20, and the lower portion of the front end of the cradle is also closed by the transverse plate 22 which provided upon its upper edge with an outwardly extendin .lip 23 to closely engage the bottom wall 0 the hopper-25 which is formed upon the lower end, of an inclined channeled guide 24. The side plates 19 of the cradle at the front endsthereof are provided with extensions :26 which are extended into the inner sides of the hopper 25. i conveyor 27 is mounted in the guide 24- and in the hopper 25, said hopper being disposed ad jacent the outlet end of the cradle. As the particular means of mounting this conveyer forms no part of the present invention, the same will not be described in detail. The bottom of the cradle 13 consists of a plurality of perforated metal plates 28 which are arranged'between the side walls of the hopper and held thereon manner. The bottom of the cradle at its front end is provided with charge gate 29 which is in the slde walls 18 asindicated at 30. I The sideplateslS ofthe walls 18 of the cradle are provided with depending flanges or Y Patentedllct. 22,1912. Y

the usual dis-' plvotally mounted which is more particu- I use at the rear end 69 in any desired wings 31 upon their front ends to prevent material moving off of the ends of the gate 29 when the same is disposed below the walls of-the cradle. To the ends of the gate'at .its free edge the lower ends of the bars 32 are pivotally connected, the upper ends of said bars being ivoted to the forward ends ofthe weighted arms 33 fulcrumed upon the standards 34 which are fixed to the side walls 18 of the cradle.

Upon the side walls of the jig cradle 13 and at the front end thereof a transverse shaft 35 is rigidly. held at its ends in the bearings 36. To this shaft 35 the forward ends of the arms 37 are loosely connected, the rear ends of said arms being connected in a similar manner to the transverse shaft 14 mounted upon the jig tank. The rear end of the cradle 13 is also supported by a pair of arms 38, the upper ends of which.

than the rear cradle supporting arms 38.

The former are disposed at an angle of about 15 with relation to the longitudinal plane of the cradle while the latter arms are disposed at an angle-of about 30 with relation thereto. It will thus be obvious that upon the oscillatory movement which is transmitted to the cradle by the arms 42 in the rotation of the operating shaft 6, there will be a greater vertical movement of the front end of the cradle than of its rear end. By mounting the cradle for movement in this manner, it will also be readily seen that the water will force its way through the openings in the bottom wall of the cradle and through the bed of material therein, and exert its greatest pressure upon the material in the forward portion of the cradle so that the complete separation of the coal from the foreign materials is effected at its point of discharge. 'lVhen the coal is lifted by the water and floated over the front end wall of the cradle and into the hopper 25, the slate and other particles of heavy foreign material move down the inclined bottom wall 28- of the cradle when the same is in its lowermost position, such inclination of the cradle being effected by the greater vertical movement of the cradle at its front end as above explained. \Vhen sufficient slate has accumulated upon the gate 29 to overcome/the weighted arms 33, said gate opens and. deposits the material in the bottom of the jig tank, as is common in machines I of thisof the tank. A valve of any suitable form indicated at 44 is also preferably provided at the bottom of the jig tank to draw. off the minute particles of coal and dust whichfind their way through the openings in the bottom 28 of. the cradle.

In order to provide means for varying the direction of greatest movement of the jig cradle which is desirable in the-separation of different grades of coal, the bearings for the stationary shaft 14 above the front endof the cradle are preferably adjustable, saidbearings being mounted upon the brackets 45. These brackets are rigidly fixed upon the walls of the jig tankand are-provided with the upwardly inclined ortions 46, said inclined ortions of the rackets being formed with a plurality of openings 47 to receive the fastening bolts for the bearings 16. By moving these bearings upwardly 0r downwardly upon the inclined arms 46 of the brackets 45, the degree of angularity of the arms 37 with relation to the cradle may be increased or decreased as desired so that the greater portion of the thrust exerted by tank. This latter form of bracket may, however, also be employed in connection with the forward arms 37 so as to adjust the angular disposition-0f said arms with relation to the jig cradle and thus vary the extent of vertical movement of the forward end of the cradle.

Within the cradle 13 and between the side walls thereof at its rear end, a suitable feed gate 48 is'arranged, and-the bottom of the cradle is preferably provided with an in- ,clined or stepped portion 49, to facilitate the movement of the material into the-forward .portion of the cradle after it has passed beneath said gate.

From the foregoing it is believed that the construction and operation of our improved coal washing jig will be fully understood. The above described means for hangingor suspending the movable cradle within the jig tank greatly facilitates the washing'or separation ofthe coal from, theslate and also assures its thorough separation owing to the fact that the greatest impact or pres- 130 sure of the water upon the bed of material is at the forward or, discharge end ofthe cradle. In jigs of this character with which we are familiar, no means is provided for simultaneously and inversely varying the vertical and longitudinal movement of the cradle so as to maintain a proper compound reciprocating action thereof for the separation of various materials of difie'rent specific gravities. By means of our invention we aimto overcome this deficiency and dbtain a quick and thorough separation of the coal from the foreign matter. The device consists of comparatlvely few elements which are simple anddurable in construction and may bemanufactured at compara- 4 sential feature or sacrificing any of the advantages thereof.

Having thus described the invention what is claimed-1s:-

l. The combination with a jig tank and a cradle to reciprocate therein, of supporting arms connected at one of their ends to the cradle, inclined supports mounted .upon the jig tank, a transverse shaft, the other ends ing the cradle.

2. The combination with a jig tank and a cradle to reciprocate therein, of supporting arms connected to one end of the cradle, a

-. transverse shaft, the other ends of said arms being fixed to said shaft, obliquely movable bearings for the shaft mounted upon the jig tank, means for rigidly securing said bearings in their adjusted positions, inclined hanger arms connected to the other end of the cradle, bracket plates mounted onrthe jig tank, and means for adjusting said arms upon the bracket plates to vary their inclination with relation to the cradle, and means for actuating the cradle.

3. The combination with a jig tank and a cradle to reciprocate therein, of supporting arms connected to one end of said cradle,

a transverse shaft, said arms being fixed upon the shaft, longitudinally inclined supports mounted upon the walls of the tank, adjustable bearings for the ends of said shaft longitudinally movable on the supports, inclined hanger arms connected to the other end of said cradle, andmeans for mounting said arms upon the jig tank and verticallyadjusting the same to vary their inclination with relation'to the cradle, and means for actuating said cradle.

4. The combination with a jig tank and a cradle to reciprocate therein, of a transverse shaft mounted in one end of the cradle, sup orting arms loosely connected to said sha t, inclined supports mounted upon the walls of the ig tank, bearings longitudinally adjustable upon the inclined surfaces of said supports, a shaft rotatably mounted at its ends in said bearings, the other ends of the cradle supporting arms being fixed upon said shaft, a transverse shaft mounted upon the jig tank, inclined hanger arms loosely mounted upon said shaft and connected to the cradle, and means for vertically adjusting said transverse shaft to vary the inclination of the arms with relation to the cradle, and actuating means connected to the shaft mounted in the end of the cradle.

In testimony whereof We hereunto afiix our signatures in the presenceof two witnesses.

GEORGE WV. KELLER. CHARLES BRASSINGTON. ABRAHAM BRASSINGTON. HARRY D. KOSTENBAUDER.

Witnesses:

E. M. WILLIAMS, F. E. TIERS. 

